Tracker-board.



R. W. PAIN.

TRACKER BOARD.

APPLICATION FILED APR. 3, 190a.

Patented Feb 2, 1909.

B BHEBT8-SHEIJT 2 Inv tor:

M W D wjw - sheetfimd tracker, arts UNITED sTATns PATENT OFFICE.

ROBERT W. PAIN, OF NEW YORK, N. Y., ASSIGNOR TO AEOLIAN COMPANY, OF NEW YORK, N. -Y., CORPORATION OF CONNECTICUT.

TRACKER-BOARD.

Specification of Letters Patent.

Patented Feb. 2, 1909.

Application filed April 3, 1908. Serial N 0. 424,867.

'county and State of New York, have invented certain new and useful Improvements in Tracker-Boards, of which the following is a s eciiication. his invention relates to improvements in tracker boards for pneumatic playing attachments for musical instruments, and the object of my invention is to provide a new and improved tracker board, which is simple in construction is provided with two rows of holes, the number of holes in one row diifering from the number of holes in the other row, which tracker board is provided with means for readily adjustin it so that either one of these rows of holes ecomes effective, and is reliable and effective in use. In the accom anying drawin s, in which like letters of re erence indicate he parts in all the figures: Figure 1 is a transverse sectipnal view through my im roved tracker board, in connection with t e music rolls, showing it adusted so that one row of holes is effective. ig. 2 is a similar view showing the tracker board adjusted for making the other row of holes effective. Fig. 3 is a plan view. showing the rolls perforated music being broken away. Fig. 4 is a detail si e view of the supporting plate for the ends of the movable part of the tracker board. Fig. 5 is a sectional view on the line b-b of Fi" 4. Fig. 6 is a face view of the outer ed e p ate of the adjustable part of the tracker card. Fig. 7 is a longitudinal view of the inner edge plate. Fig. 8 is an end view of the adjustable art of the tracker board, parts being omitte Fig. 9 is a transverse sectional view through the fixed and adjustable parts of the tracker board. Fig. 10. is a side view of the frame of the adjustable part of the tracker board, showing the connections between the inner and outer plates of the adjustable part of the tracker oar The ad'ustable part of my tracker board consists oi an outer late A extending longitudinally of the tree er board and an innerplate B also extending longitudinally, the outer faces of both of said plates bein curved convexly. These edge plates A an B are united at each end by cross pieces 0 secured to the inner faces of said edge plates, which cross pieces (J with the edge plates form the frame of the adjustable art of the tracker board. The side walls of the adjustable art of the tracker board have invaded edges itting in grooves in the inner faces of the plates A and B, whereby the covering members D are held in place, as shown in Fig. 9 for example.

In the outer plate A over which the perforated note sheets pass, there are two rows of tracker holes, one row F serving for the '88 note perforated music and the other row G for the note music. The 88 note row F is rovided with 91 holes of which 88 are only or sounding musical notes, one is used for controllin the loud pedal neumatic and one atom end is for controlling the opera tion of an accenting mechanism. The 65 note row G has 67 holes of which the two at the ends serve for controlling the operation of the accenting mechanism. As will be seen from Fig. 7, the row F containing the .91 holes is shorter than the row G contain' the 67 holes and thus it is evident that the oles for the 88 note sheet, as represented by the row F must be smaller and spaced closer than those of the 65 note row G. On the in- Her side of the tracker, that is, on the longitudinal edge late B the conditions are reversed as all he holes are of the same size and therefore the row H of holes in the plate B corres onding to the row F in the plate A is much onger than the row J in the late B corresponding to the row G of the p ate A. The corresponding holes of the two rows in the plate B pertaining to the same note must be in line transversely to the tracker board as is shown at :c--a: and 31- in Fig. 6, this being'practically the same at both ends, taking into consideration however the blank spaces a in the row J. It therefore follows that the ducts connecting the corresponding holes in the plates A and B must be arranged at an inclination or curved, but it would be practicall impossible to bore these curved holes. I t erefore connect the corresponding holes in the plates A and B b means of curved tubes K, properly. so cur d on the plates so as to establish communication between the corresponding holes in the corres onding edge plates A and B. The side wal D merely serve as a covering to prevent the accumulation of dust and protect the tubes from injury while handling the tracker board.

The fixed section L of the tracker board is provided witha concave face of precisely the able section and the ho es of the rows N and O are so connected with a series of ducts P leading from the fixed section L that each two correspondin holes of the rows N and O are connected wit one and the 'same duct P. Of course it is to be understood that those ducts of the row N in the section L in excess of the number of ducts in the row 0, are singly connected with ducts P of their own. Each of these ducts P leads to the valve mechanism of a player pneumatic or to the mechanism for operating a pedal or an accenting mechanism. T ose ducts P connected with corresponding holes in therows N and O of course operate only one of these mechanisms, as either of the two corresponding holes of the rows N and 0, connected with any one duct P operate or cause the operation of the pneumatic mechanism consa nected with this duct P.

The movable section of the tracker board is provided at each end with a pivot Q which is so located that this section can swing on its pivots 'while describing the are of the outer face of the edge plate B and the arc of the concave recess in the face of the fixed ortion L. These end pins Q pass through on itudinal slots R in lates S countersunk in t e inner surfaces of t e end walls T of the tracker pit V, which is the box in which the tracker and music rolls W and Y are contained and the pivots Q project into recesses b in the walls Each plate S is provided with a U shaped slot (1 near itsinner edge and through said slot a pin 9 projects from the end of the mov able part 0 the tracker andinto a recess h formed in the all T of the pit. A s ring 1 suitably secured in the side wall of t e pit bears ith its free end upon said pin 9 and thus these s rings'serve to ress theconvex surface of t e inner edge lhte B u on the convex surface of the fixed section of the tracker board.

As shown in Fig. 1, the holes corresponding to the 65 note row G are in communication with the holes of the row J and ducts P the ducts of the row N being closed by a solid portion of the inner edge plate B. As shown in Fig. 2, the movable section of the tracker board is difi'erently adjusted and the holes of the 65 note row G are closed and the holes of the 88 note row F are now in com-l munication with the holes of the row H and ducts P, so that for the purpose of adjusting the tracker for 65 note paper ori88 note paper it is only necessary to change the inclination ofthe movable part of the tracker board from the position shown in Fig. 1 to that shown in Big. 2, or vice versa. or the purpose of soadjusting the tracker boardthe movable art isfirst pulled outward so as, to remove t e pins 9 at the ends of the movable section out of those legs of the U shaped slots (1 in which they rest and then the tracker board is swung so as-to bring these pins into the other legs of the slots d in which they are held by the s rin l. The pins g with the edges of the s ots 5 assure a correct position of the movable part of the tracker board for either adjustment and prevent an displacement of the movable section of t 1e tracker board after it has been adjusted and also hold the two sections of the tracker board in close contact so as to prevent any leakage of air.

Having described my invention what I claim ap new and desire to secure by Letters Patent: is V 1. A tracker board for pneumatic playing attachments for musical instruments, composed of two lon itudinal edge plates, each aving rows of he es,'cross pieces uniting the plates and tubes connecting the corres onding holes in the two plates, substantia ly as set forth.

2. In a tracker board for pneumatic play ing attachments for musical instruments, the combination with two longitudinal plates, each having two parallel rows of holes, there being the same number of holes in each correspondin row of each plate and the two rows of he es in one plate ein substantially the same length whereas in t e other plate the two rows are of difierent length and tubes connecting each-hole of each row in one plate other Iplate, su stantially as set forth. 3. n a tracker board for pneumatic pla ing attachments for musical instruments, t e combination with two plates each having rows of holes, of cross pieces unitingthe plates, tubes connecting the corres ending oles in the two plates and cover ates secured to the side edges of the said plates, substantially as set forth.

4. In a tracker board for pneumatic pla ing attachments for musical instruments, tli e combination with two plates having rows of holes, of cross pieces unitin the lates, tubes connecting the corresponding oles of the two plates, the plates being rovided with grooves along their edges an having 'their edges held within the said grooves, substantially as set forth.

5. In a tracker board for pneumatic playing attachments for musical instruments, the combination with a fixed section having two rows of holes, of a movable section having ducts terminating at the edge of the movable cover plates with the corres onding hole of the row in the section adjacent to the fixed section in two rows of holes, the holes of each row being adapted to register with the holes of the corresponding row inthe fixed section, pivots on which the movable section can swing, which movable section is also movable .toward and from the fixed section on a line extending in the direction from the outer to the inner face of the movable section, sub stantially as set forth.

6. In a tracker board for pneumatic playing attachments for musical instruments, the combination with a fixed section having two rows of holes, of a movable section having ducts terminating at the edge of the movable section adjacent to the fixed section in two rows of holes, the holes of each row being adapted to register with the holes of the corresponding row in the fixed section, pivots on which the movable section can swim which movable section is also mbvab e toward and from the fixed section on a line extending in the direction from the outer to the inner face of the movable section, and means for pressing the movable section upon the fixed section, substantially as set forth.

7. In a tracker board for pneumatic playing attachments, the combination with a fixed section having two rows of holes, of a movable section having ducts terminating at the edge of the movable section adjacent to the fix ed section in two rows of holes, the holes of each row being adapted to register with the holes of the corresponding row in the fixed section, pivots on which the movable section can swing, which movable section is.also movable toward and from the fixed section on a line extending in the direction from the outer to the inner face of the movable section, and pins projecting from the ends of the movable section and springs bearing on said pins to hold the fixed section against the movable section, substantially as set forth. 8. In a tracker board for pneumatic playlng instruments, the combination with a fixed section having two rows of holes, some of the holes, of one row being connected with holes in the other, a duct connected with each. hole of one row not connected witha hole in the other row and a duct connected with each pair of connected holes of the two rows, a movable section having ducts terminating at the inner edge o said movable section in two rows of holes, each of which holes can register with a hole of one of the rows in the fixed section, the movable section movable toward and from the fixed section and also movable transversely to its length and means for holding the movable section in contact with the fixed section at either lateral adjustment, substantially as set forth. v 9. In a tracker board for pneumatic playmg attachments for musical instruments,

the combination with a fixed section having a concave face and two rows of holes and ducts communicating with the holes, said ducts terminating in the holes in the concave face of the fixed section, of a movable section having a convex inner edge said movable section having ducts terminatin in two rows of holes in said convex edge 0 the movable section, the convex edge being curved on the. same radius as the concave face of the fixed section, pivots on which said movable section can swing on the arc of said concave and convex adjacent faces, and plates in which said pivots are mounted, each plate having a slot extending in the direction from the fixed section toward the movable section through which slots said pivots pass, substantially as set forth.

10. In a tracker board for pneumatic playing attachments for musical instruments, the combination with a fixed section, having a concave face provided with two longitudinal rows of holes, of a movable section having a convex face fitting on the concave face of the fixed section, said movable section having ducts that can register with the holes in the fixed section, end pivots on the movable section on which this section can swing, plates having slots through which said end pivots pass and move in the direction toward and from the fixed section, said plates also having U shaped slots, pins )rojecting from the ends of the movable section through the U shaped slots, substantially as set forth.

1]. In a tracker board for pneumatic playing attachments for musical instruments, the combination with a fixed section, having a concave face provided with two longitudinal rows of holes, of a movable section having a convex face fittin on the concave face of the fixed section, said movable section having ducts that can register with the holes in the fixed section, end pivots on the movable section on which this section can swing, plates having slots through which said end pivots pass and move in the direction toward and from the fixed section, said plates also having U shapedslots, pins projecting from the ends of the movable section through the U shaped slots, and means for locking said pins in either leg of said slots, substantially as set forth.

12. In a tracker board for pneumatic playing attachments for musical instruments, the combination with a fixed section, having a concave face provided with two longitudinal rows of holes, of a movable section having a convex face fitting on the concave face of the fixed section, said movable section having ducts that can register with the holes in the fixed sect on, end pivots on the movable section on which this section can swing, plates having slots through which said end pivots pass and move in the direction toward and from the fixed section, said 5 leg of the U shalped slots, substantially as set forth.

In testimony whereof,1 have signed my name to this specification in the presence of two subscribing witnesses, this 31st day of March 1908.

ROBERT W. PAIN.

Witnesses:

E. R. JOHNSON, F. H. Hnenns. 

